I just ran across this gem - the very fabulous Joni backed by Jaco, Pat Metheny and other luminaries of the era. There is a Jaco solo and a lot of good solid musicianship on display here, as well as one of the best live mixes that I have heard in a while and certainly one of the best I have heard on a live youtube video. The first YT comment sums it all up and the second comment has the setlist with links. Enjoy. Recorded at the Santa Barbara County Bowl in September 1979 on the Mingus tour. Actually the comments are worth reading though too.